Order of operations: the rules of which calculation comes first in an expression.
They are: PEMDAS
<span><span>Do everything inside parentheses first: ()
</span><span>then do exponents: x2
</span><span>then do multiplies and divides from left to right
</span><span>lastly do the adds and subtracts from left to right</span></span>
Answer:
157.5°
Step-by-step explanation:
Total size of interior angles=(2n-4)90°
(2x16-4)90= 2520
size of one interior angle= (2n-4)90°/n
2520/16
Answer= 157.5°
NB n is the number of sides
Answer:
I believe it is 48%
Step-by-step explanation:
The total amount of people who liked to read printed books is 67.
Then the total amount of people who liked either print or electronic books is 140.
If I am remembering correctly, you would divide 67 by 140 to get the percentage of people who like to read printed books.
<u>67/140 = 48%</u> (rounded)
When will they blink together?
what is the smallest number they both mutiply to
3*5=15
so every 15 seconds
so at 15, 30, 45, 60 seconds
so 4 times if you count the time exactly at 1 minute
